当我尝试安装一个包时，rpm 告诉我它已经安装了。当我尝试删除同一个包时，它告诉我它没有安装。强制安装失败（大概是因为已经安装了），不能强制删除。知道这里发生了什么吗？
[ecarroll@x200s extensions]$ sudo rpm -i /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm
warning: /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm: Header V3 DSA/SHA1 Signature, key ID 39256cb2: NOKEY
package gnome-shell-frippery-0.1.0-1.noarch is already installed
[ecarroll@x200s extensions]$ sudo rpm -e /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm
error: package /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm is not installed
强制安装：
[ecarroll@x200s extensions]$ sudo rpm --force -i /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm
warning: /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm: Header V3 DSA/SHA1 Signature, key ID 39256cb2: NOKEY
[ecarroll@x200s extensions]$ sudo rpm -e /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm
error: package /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm is not installed
强制删除：
[ecarroll@x200s extensions]$ sudo rpm --force -e /home/ecarroll/Downloads/gnome-shell-frippery-0.1.0-1.noarch.rpm
rpm: only installation and upgrading may be …